Circulator Pumps

A circulator pump is a specific type of pump used to circulate gases, liquids or slurries in a closed circuit. They are commonly found circulating water in a hydronic heating or cooling system. Due to the fact that they only circulate liquid within a closed circuit, they need only overcome the friction of a piping system, as opposed to lifting a fluid from a point of lower potential energy to a point of higher potential energy.

Circular pumps used in hydronic systems are usually electrically powered centrifugal pumps. As used in homes, they are often small, sealed and rated at a fraction of kW’s, but in commercial applications they range in size up to many kW’s. The electric motor is usually separated from the pump body by some form of mechanical coupling.

Pumps that are used solely for closed hydronic systems can be made with cast iron components, as the water in the loop will either become de-oxygenated or be treated with chemicals to inhibit corrosion, but pumps that have a steady stream of oxygenated, potable water flowing through them must be made of higher quality materials such as bronze. We have the perfect Circulator Pump choices from most top suppliers to ensure that you get exactly what you need at the price to suit you.

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